- Cameo Prop: One of the gold items Carmen picks and tosses away in the treasure chamber is the small gold idol from Raiders of the Lost Ark.
- The Cast Showoff:
- You thought Juni's attempt at ballet in the second film was just because Real Men Wear Pink? Daryl Sabara has studied ballet since he was 3, and he started performing professionally at the age of 4.
- Carmen (Alexa Vega) performs her song "Isle Of Dreams" both in English and Spanish.
- Image Source: Literal Surveillance Bug and Helicopter Hair
- Playing Against Type: Mike Judge, of all people, is the Big Bad (in an extremely rare live-action role to boot).
- Real-Life Relative: Richard Linklater has a cameo opposite his daughter Lorelei.
- What Could Have Been: The theme park at the beginning was originally going to be Disneyland in California, but Disney generally doesn't allow films to be shot in their theme parks, so it was changed to a fictional park with Six Flags Over Texas in Arlington acting as the stand-in.
Trivia / Spy Kids 2: Island of Lost Dreams